US PATENT SUBCLASS 332 / 181
.~.~ Plate circuit modulation


Current as of: June, 1999
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332 /   HD   MODULATORS

149  DF  AMPLITUDE MODULATOR {14}
179  DF  .~ Including electron discharge device {3}
181.~.~ Plate circuit modulation


DEFINITION

Classification: 332/181

Plate circuit modulation:

(under subclass 179) Subject matter including an electronic tube which generates or amplifies the carrier, and in which the modulating signal is applied to the anode circuit of the tube or controls a circuit element in the anode circuit.

(1) Note. This subclass includes circuits in which a variable voltage under control of the modulating signal is added to the anode supply voltage.